# SDR CALA2026060316797

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 2, 2026
- Submitted: June 3, 2026
- Operation: Air carrier
- Aircraft: [N47291](https://openairdocs.org/aircraft/N47291), registered now
- Make and model: Boeing 737-8
- Registry model: [Boeing 737-8](https://openairdocs.org/model/boeing-737-8) (OpenAirDocs)
- Aircraft serial: 62182
- Aircraft time: 10,932 hours, 3,725 cycles
- System (JASC): [2211 · Autopilot Computer](https://openairdocs.org/jasc/2211)
- Part: Relay
- Part number: M835362024M
- Condition: Faulty
- Location: Zone 100
- Stage of operation: CR
- How discovered: O
- Nature of condition: F
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026060316797

## Discrepancy

BOTH AUTOPILOTS WOULD NOT ENGAGE IN FLIGHT REF FIM 22-11 TASK D56. FOR CHANNEL A, FOUND MAINT MESSAGE 22-11127 AND 22-11208 PRESENT. FOR CHANNEL B, FOUND MAINT MESSAGE 22-11208 PRESENT. REMOVED RELAY R1193 AND CHECKED VOLTAGE. FOUND 25.5VDC PRESENT. REPLACED RELAY R1193 REF WDM 22-13-11. RERAN TESTS FOR MAINT MESSAGE 22-11208. NO FAULTS NOTED FOR CHANNEL A AND B. REF FIM 22-11 TASK 888 FOR MAINT MESSAGE 22-11127.  PERFORMED INITIAL EVALUATION. TEST PASSED. WILL REQUIRE SUBSEQUENT FLIGHTS TO VERIFY FAULT IS RECTIFIED.

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